Timed Message Sending

When this flow is started, the user specifies a message, a number of contacts and a target time. At the target time, the message will be sent to each contact via SMS.

All inputs are handled with dialogs, so you do not need to change the flow itself unless you want to edit the automatic message header (by default, each message has "[Automated message] " added to its start).

When all messages have been sent, a notification is shown to remind the user of the message and whom it was sent to.